[coreboot-gerrit] [XS] Change in coreboot[main]: soc/amd/common/data_fabric/domain: don't report DRAM as MMIO producer

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/80407?usp=email )

Change subject: soc/amd/common/data_fabric/domain: don't report DRAM as MMIO producer
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soc/amd/common/data_fabric/domain: don't report DRAM as MMIO producer

In commit 30f36c35e75a ("soc/amd: rework DRAM and fixed resource
reporting") the reporting of the DRAM resources was moved from the
northbridge PCI device to the domain device. amd_pci_domain_fill_ssdt
didn't skip those DRAM resources when generation the resource producer
ranges which made Windows 10 very unhappy when it tried to evaluating
the ACPI tables causing it to reboot in a loop. To fix this, add a check
to also skip the resources that have the IORESOURCE_STORED flag set when
generating the resource producer ranges for the PCI root.

TEST=Windows 10 now successfully boots and reboots again on Mandolin

Signed-off-by: Felix Held 
Change-Id: I7b6d3fd8c7f89aa4364de7963d745aef8d6b6f42
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80407
Reviewed-by: Matt DeVillier 
Tested-by: build bot (Jenkins) 
Reviewed-by: Arthur Heymans 
---
M src/soc/amd/common/block/data_fabric/domain.c
1 file changed, 3 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Matt DeVillier: Looks good to me, approved
  Arthur Heymans: Looks good to me, approved

diff --git a/src/soc/amd/common/block/data_fabric/domain.c b/src/soc/amd/common/block/data_fabric/domain.c
index f5d7216..afe79fe 100644
--- a/src/soc/amd/common/block/data_fabric/domain.c
+++ b/src/soc/amd/common/block/data_fabric/domain.c
@@ -281,6 +281,9 @@
    	   devices */
    	if ((res->flags & IORESOURCE_RESERVE))
    		continue;
+		/* Don't add MMIO producer ranges for DRAM regions */
+		if (res->flags & IORESOURCE_STORED)
+			continue;
    	switch (res->flags & IORESOURCE_TYPE_MASK) {
    	case IORESOURCE_IO:
    		write_ssdt_domain_io_producer_range(acpi_device_name(domain),